package com.itheima.mapper;

import com.itheima.dto.ClazzDto;
import com.itheima.pojo.Clazz;
import com.itheima.vo.ClazzVo;
import org.apache.ibatis.annotations.Delete;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Select;

import java.util.List;

@Mapper
public interface ClazzMapper {
    Integer count(ClazzDto clazzDto);

    List<ClazzVo> list(ClazzDto clazzDto);

    void insert(Clazz clazz);

    @Select("select * from clazz where id=#{id}")
    Clazz getById(Integer id);

    void updateById(Clazz clazz);

    @Delete("delete from clazz where id=#{id}")
    void deleteById(Integer id);

    @Select("select * from clazz")
    List<Clazz> listall();


}
